Here you can find the source of parse(File f)
public static Document parse(File f) throws SAXException, IOException
//package com.java2s; /**/*from w w w . ja v a2 s. co m*/ * Copyright (C) 2008 10gen Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import java.io.*; import javax.xml.parsers.*; import org.w3c.dom.*; import org.xml.sax.*; public class Main { public static Document parse(File f) throws SAXException, IOException { return getBuilder().parse(f); } public static Document parse(InputStream in) throws SAXException, IOException { return getBuilder().parse(in); } public static Document parse(String s) throws SAXException, IOException { return parse(new StringBufferInputStream(s)); } public static DocumentBuilder getBuilder() { try { return DocumentBuilderFactory.newInstance().newDocumentBuilder(); } catch (ParserConfigurationException pce) { throw new RuntimeException("can't create parser?" + pce); } } }